Atomizing nozzle and method

Fluid sprinkling – spraying – and diffusing – Processes – Including mixing or combining with air – gas or steam

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239 79, 239433, A62C 502, B05B 124

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active

061423823

ABSTRACT:
A high pressure close-coupled gas atomizing nozzle includes multiple discrete gas jet discharge orifices having aerodynamically designed convergent-divergent geometry with an first converging section communicated to a gas supply manifold and to a diverging section by a constricted throat section to increase atomizing gas velocity. The gas jet orifices are oriented at gas jet apex angle selected relative to the melt supply tip apex angle to establish a melt aspiration condition at the melt supply tip.

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Effects of Supersonic Jet on Particle Size of Gas-Atomized Metal Powder; Kobe Steel Engineering Reports, vol. 42 (4), pp. 3-6, 1992, Satoh et al.
Production of Superalloy Powders by Means of Confined Design Gas Atomization with Supersonic, Multiple Discrete and Swirl Jets; Kobe Steel Engineering Reports, vol. 79 (12), pp. 52-56, 1993, Satoh et al.
Production of Superalloy Fine Powder by Means of Confined Gas Atomization with Supersonic, Multiple-Discrete Swirl Jets; Kobe Steel Engineering Reports, vol. 44 (2), pp. 34-37, 1994, Satoh et al.

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